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From Jeremy Boynes <jboy...@apache.org>
Subject Re: fragments
Date Wed, 09 Aug 2006 19:49:00 GMT
On Aug 9, 2006, at 12:06 PM, Jon Lewis wrote:

> hi All,
>
>   Can someone point me to some documentation on fragments and how  
> they are
> used within SCA?

There is some coverage in the 0.9 assembly model spec available here:
http://www.osoa.org/display/Main/SCA+-+Previously+Published 
+Specifications

Since then though, fragments have be replaced with the concept of  
recursive composition which is described in the 0.95 level spec:
http://www.osoa.org/display/Main/Service+Component+Architecture 
+Specifications
and
http://www.osoa.org/display/Main/Recursive+Assembly+Model

Fragments are now just composites that are used by other composites  
in one of two ways:
* as implementatation, where a component in a composite is  
implemented by a composite. This has benefits in terms of encapsulation.
* by inclusion, where a composite includes services, references and  
properties from another which is really a way of just partitioning up  
the definition (think #include)

--
Jeremy


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